dotfiles: Skill for Claude Code

.claude/skills/morning-briefing/SKILL.md

morning-briefing is a skill for Claude Code from jaehanbyun/dotfiles. It costs 80 tokens per session (1,525 once invoked), scanned C, original, no licence file.

A daily news briefing tool that collects technology and business articles from Hacker News, GeekNews, and RSS feeds, then saves a selected summary as an Obsidian note. Obsidian is a note-taking app that stores linked plain-text documents.

In plain words
What is it for?
Use it to create a morning technology and business news note in Obsidian.
Why use it?
It removes the need to check several news sources and assemble a daily briefing by hand.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is jaehanbyun/dotfiles's own configuration. It tells Claude Code how to work on dotfiles itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything dotfiles configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jaehanbyun/dotfiles. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/jaehanbyun/dotfiles/main/.claude/skills/morning-briefing/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jaehanbyun/dotfiles

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for morning-briefing

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaehanbyun/dotfiles/morning-briefing/github.svg)](https://agentmods.dev/skills/jaehanbyun/dotfiles/morning-briefing)
Your own site
<a href="https://agentmods.dev/skills/jaehanbyun/dotfiles/morning-briefing"><img src="https://agentmods.dev/badge/skills/jaehanbyun/dotfiles/morning-briefing/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for morning-briefing

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaehanbyun/dotfiles/morning-briefing"><img src="https://agentmods.dev/badge/skills/jaehanbyun/dotfiles/morning-briefing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,525 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00080 $0.01525
Opus 5 $0.00040 $0.00763
Sonnet 5 $0.00016 $0.00305
Haiku 4.5 $0.00008 $0.00153

Measured 7d ago against content hash 4cd197c70b33, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade C, and why

morning-briefing scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -s https://hacker-news.firebaseio.com/v0/topstories.json | python3 -c "

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| Hacker News | `curl https://hacker-news.firebaseio.com/v0/topstories.json` → fetch top 30 item details | Top stories, score > 100 |
.claude/skills/morning-briefing/SKILL.md · 186 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 186 lines · 80 tokens per session scan C 4cd197c70b33

Subscribe to this mod's changes

morning-briefing is a skill published in the GitHub repository jaehanbyun/dotfiles (2 stars, last pushed today), with no licence file. It adds 80 tokens to every session and 1,525 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.